> For the complete documentation index, see [llms.txt](https://osint.cavementech.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://osint.cavementech.com/website-osint/rdap.md).

# RDAP

The Registration Data Access Protocol (RDAP) is the authoritative source for IP ownership. Unlike commercial GeoIP services or provider marketing pages, RDAP data is maintained by Regional Internet Registries (RIRs) such as RIPE NCC, ARIN, and APNIC. It tells us precisely who has been provided with the netblock.

From RDAP, we obtain:

NetRange: The range of addresses delegated.
\
Organisation: The registered holder (e.g., Amazon, Vodafone, TryHackMe).
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Remarks: Often include whether the block is used for hosting, broadband, or mobile.
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Abuse Contact: The official mailbox for incident reporting.

{% embed url="<https://about.rdap.org/>" %}